CN101956875A - Aluminum-rubber composite tube of air conditioner - Google Patents
Aluminum-rubber composite tube of air conditioner Download PDFInfo
- Publication number
- CN101956875A CN101956875A CN 201010291089 CN201010291089A CN101956875A CN 101956875 A CN101956875 A CN 101956875A CN 201010291089 CN201010291089 CN 201010291089 CN 201010291089 A CN201010291089 A CN 201010291089A CN 101956875 A CN101956875 A CN 101956875A
- Authority
- CN
- China
- Prior art keywords
- pipe
- rubber
- air
- rubber composite
- conditioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention relates to an aluminum-rubber composite tube of an air conditioner, which comprises five layers from inside to outside: a composite inner layer, an inner middle layer, an aluminum film middle layer, a middle outer layer and an outer layer, wherein the composite inner layer is made of a high-crosslinking chlorosulfonated polyethylene (CSM) and chlorinated polyethylene (CPE) composite material; the inner middle layer and the middle outer layer are made of a hot melt adhesive of an ethylene-vinlacetate copolymer (EVA); the thickness of the aluminum film middle layer is 0.2-0.4mm; the outer layer is made of crosslinking EPDM (Ethylene-Propylene-Diene Monomer); and the inner diameter of the aluminum-rubber composite tube of the air conditioner is 2-500mm. The aluminum film middle layer has the characteristic of no permeation like a metal copper tube, thus the aluminum-rubber composite tube can better inhibit the permeation of various refrigeration agents, has the characteristics of low manufacture cost, strong permeation-resisting capability, good vibration-absorbing property and low vibration noise, can be used as a splint connecting tube in the air conditioner, a suction and exhaust tube of a compressor, and the like for replacing the copper tube, and can be widely applied to the fields of heating and ventilating, medicines, chemical industry, building, refrigeration equipment, and the like.
Description
Technical field
The present invention relates to a kind of air-conditioning composite pipe, particularly a kind of air-conditioning aluminium rubber composite pipe of alternative air-conditioning copper pipe.
Background technique
In recent years, the high position of international copper valency continued, and making has strong dependent domestic air conditioning industry to be subjected to tremendous influence to the copper resource, and wherein the impact to air conditioner connecting pipe (copper pipe) seems particularly outstanding.Data shows that with present exploitation rate, tellurian copper resource can also be exploited at most 30 years, and bauxite resource is relatively abundant, and the minable time is also longer relatively, thereby for copper certain guarantee is arranged on resource with aluminium.Therefore, since 2006, most of air-conditioning manufacturer has released the air-conditioning that is equipped with copper aluminium composite connecting pipe to market.Yet for various reasons, this " copper substitutes " technology remains the most disputed topic of industry so far.
No matter be from economic angle, still from performance perspective, macromolecular material all is considered to a kind of comparatively desirable metal substitute material, and has been applied to a lot of fields by maturation, wherein just comprises car air conditioner connecting tube, i.e. air conditioning hose.
About the air conditioning hose that automobile is used, Chinese patent literature CN1232149A discloses a kind of air conditioning hose on October 20th, 1999, and inner sandwich layer comprises aplastic polyamide, and middle enhancement layer comprises the aramid fiber; Outermost surface comprises acrylate rubber.The flexible pipe of this four-layer structure presents the performance of the high temperature in high ductility, high gas impermeability and the anti-150 ℃ of scopes.
Chinese patent literature CN2797820Y discloses a kind of automotive air conditioning hose technological scheme on November 15th, 2004: the flexible pipe body is followed successively by from outside to inside; Outer glue-line, enhancement layer, mesoglea, nylon composite bed, inner glue layer.Its characteristics are to be provided with the elastomer inner glue layer at innermost layer, can improve airtight quality and the endurance of flexible pipe at rigid connector, inner glue layer and mesoglea can solve long-term vibration with the tight parcel of nylon composite bed and cause separating of nylon composite bed and automotive air conditioning hose body, mesoglea, outer glue-line wrap up enhancement layer, and be connected as one by hole between enhancement layer, can prevent the infiltration of the floride-free refrigerant of little molecule.
Chinese patent literature CN2506836Y discloses a kind of floride-free refrigeration air-conditioner flexible pipe in 07 month 26 days calendar year 2001, adopt refrigerant R134a, be characterized in that flexible pipe is a four-layer structure, from the inside to surface, be followed successively by the nylon alloy layer, the interior sebific duct layer of making by synthetic rubber such as butyl rubbers, the fiber-reinforced layer that is entwined by cellulose ester etc. and the outer sebific duct layer that adopts ethylene propylene diene rubber etc. to make.
Chinese patent literature CN2379686Y discloses a kind of automotive air conditioning hose assembly parts automotive air conditioning hose assembly parts on 06 18th, 1999, its objective is on the basis of the existing rubber hose assembly of forming by flexible pipe and the hose coupling that is installed in the flexible pipe two ends, add the O RunddichtringO between core pipe in hose coupling and the flexible pipe, thereby can improve its sealability effectively.
Though a lot of air conditioner for automobile flexible pipes are arranged in the market, but ubiquitous technical problem is: this automotive air conditioning hose can not be used for substituting the domestic air conditioning copper pipe, all can not satisfy usage requirement on pliability and anti-permeability, what its main cause was that domestic air conditioning and car air conditioner adopt is different refrigeration agents.Wherein, the automobile air-conditioning refrigeration agent is HFC-134a R134a, and domestic air conditioning, the difluoromethane of domestic main employing monochlorodifluoromethane R22 and environmental protection/pentafluoroethane blend refrigeration agent R410a.Because these refrigeration agents exist on physical property and chemical property than big-difference, nature also is not quite similar to the requirement of its lapping.Simultaneously, refrigeration agent R22 and R410 that domestic air conditioning adopts have bigger polarity and littler molecular diameter, the requirement that this feasible on the market air conditioning hose does not all reach domestic air conditioning at aspects such as anti-permeability and pliabilities also just can not be used for substituting domestic air conditioning connecting tube (copper pipe).Therefore, the independent research of carrying out the domestic air conditioning connecting tube is necessary, has important realistic price and theory directive significance.
Summary of the invention
Purpose of the present invention aims to provide a kind of simple and reasonable, fabricating cost is low, impermeable ability is strong, the absorbing performance is good, vibrating noise is low air-conditioning aluminium rubber composite pipe, to overcome deficiency of the prior art.
A kind of air-conditioning aluminium rubber composite pipe by this purpose design has five layers from inside to outside, and its structure characteristic is to comprise compound internal layer, mesonexine, aluminium film middle level, ectomesoderm and skin.
Described compound internal layer adopts high crosslinked chlorosulfonated polyethylene CSM and haloflex CPE composite material to make.
Described compound internal layer is made by following raw materials by weight percent:
Chlorosulfonated polyethylene CSM 48～52%,
Haloflex CPE 30～33%,
Bis-pentamethylenethiuram tetrasulfide 2.5～2.6%,
Polymer-type plasticizer 0.5～0.8%,
Titanium dioxide 0.3～0.7%,
Precipitated calcium carbonate 5.5～5.7%,
Magnesium oxide 0.5～0.7%,
Stearic acid 0.6～0.7%,
Polyatomic alcohol polybasic alcohol 0.2～0.3%,
Naphthenic oil 5.0～5.2%,
Vulcanzing agent S 0.3～0.5%,
Antioxidant NBC 0.7～1.0%,
Altax 0.6～0.8%.
Described mesonexine and ectomesoderm adopt the hot melt adhesive of ethene～vinyl acetate copolymer eva to make.
The thickness in described aluminium film middle level is 0.2～0.4mm.
The crosslinked ethylene propylene diene rubber EPDM of described outer employing makes.
Described skin is made by following raw materials by weight percent:
EPDM rubber 48～52%,
Ethylene thiourea 2.7～3.0%,
Age resister 0.6～0.7%,
Polyethylene 0.5～0.7%,
Carbon black 25～27%,
Calcium carbonate 13～18%,
Zine oxide 1.0～1.2%,
Sulphur 0.8～1.0%,
Promoter 0.3～0.7%,
Plasticizing agent 0.3～0.7%.
The internal diameter of described air-conditioning aluminium rubber composite pipe is 2～500mm, and thickness of pipe wall is 0.5～20mm.
A kind of preparation method of air-conditioning aluminium rubber composite pipe is characterized in that may further comprise the steps:
The preparation of compound internal layer:
The first step, take by weighing each material component according to the above ratio;
Second step, the banburying of pressurizeing after chlorosulfonated polyethylene CSM, haloflex CPE, bis-pentamethylenethiuram tetrasulfide, polymer-type plasticizer and titanium dioxide mixed obtain just mixing thing;
The 3rd goes on foot, magnesium oxide, stearic acid, polyatomic alcohol polybasic alcohol, naphthenic oil and precipitated calcium carbonate is added in the above-mentioned first mixed thing in batches carry out banburying successively, obtains elastomeric compound;
The 4th step, above-mentioned elastomeric compound is discharged in the mill, and in mill, add altax successively in batches, antioxidant NBC and vulcanzing agent S carry out mixingly, extrusion at last obtains the sizing material of compound internal layer;
Outer field preparation:
The first step, take by weighing each material component according to the above ratio;
Second step, the banburying of pressurizeing after EPDM rubber, ethylene thiourea, age resister and polyethylene mixed obtain just mixing thing;
The 3rd step, carbon black, calcium carbonate and zine oxide are added in batches carry out banburying and obtain elastomeric compound successively;
The 4th step, elastomeric compound is discharged in the mill, and in mill, adds promoter, plasticizing agent and sulphur successively in batches and carry out mixingly, extrude at last and obtain outer field sizing material;
The preparation of air-conditioning aluminium rubber composite pipe:
The first step, the aluminium film that at first will be planar thickness and be 0.2～0.4mm is rolled into tubulose, be made into the aluminum pipe that connects the bar seam for tape welding via the pre-shaping mechanism of installing on the jig, by heater the aluminum pipe that tape welding connects the bar seam is heated to about 200 ℃ then, the aluminum pipe that again tape welding is connect the bar seam is sent in the interior pipe die, by interior pipe die the aluminum pipe that tape welding connects the bar seam is carried out sizing processing, the Al pipe butt welding that at last tape welding is connect the bar seam becomes complete aluminum pipe, just forms aluminium film middle level 3;
Second step was heated to the sizing material of the above-mentioned compound internal layer that makes about 190 ℃, through interior pipe die extrude form in the rubber pipe, just form compound internal layer, the internal rubber enlargement of pipe of while blowing out pressurised air is exerted pressure;
Then the more above-mentioned outer field sizing material that makes is extruded with outer pipe die and formed outer rubber pipe, just form outer;
Next, ethene～vinyl acetate copolymer eva hot melt adhesive is coated on the inside and outside wall of aluminum pipe uniformly;
At last with interior rubber pipe box in aluminum pipe, outer rubber pipe is coated on the outer wall of aluminum pipe;
The 3rd step, interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are sent in the die cavity of co-extrusion die head together, heat temperature raising to 210 ℃～about 230 ℃, boost to 5MPa～6.5MPa, constant temperature and pressure 3～7 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 6～12 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
Owing to use plastics or rubber separately, no matter be to adopt nylon barrier, still adopt other composite plastic, analyze from the characteristic of macromolecular material itself, all can not reach the requirement of the hyposmosis of domestic air conditioning copper pipe.And metal can intercept the infiltration of refrigeration agent fully because of its specific crystal structure.For this reason, the present invention has adopted high crosslinked chlorosulfonated polyethylene CSM and the aluminium rubber composite pipe of haloflex CPE, between interior outer rubber layer, just between mesonexine and ectomesoderm, be provided with the thick aluminium film middle level of one deck 0.2～0.4mm, can intercept the infiltration of various refrigeration agents fully, and the preparation process of aluminium rubber pipe and connection pipe fitting technology maturation, thereby can reach the requirement of the higher anti-permeability of domestic air conditioning fully.
Mesonexine among the present invention and ectomesoderm adopt the hot melt adhesive of ethene～vinyl acetate copolymer eva to make, interior outer rubber layer and aluminium film middle level are binded, thereby improved air-conditioning aluminium rubber composite pipe bulk strength and high-low temperature resistant alternation performance, improved air-conditioning aluminium rubber composite pipe overall soft absorbing.
The present invention not only adopts the main material of chlorosulfonated polyethylene CSM as the compound internal layer of aluminium rubber composite pipe in order to reach the damping that reduces on the domestic air conditioning pipeline and the requirement of noise reduction, adopts the skin of ethylene-propylene-diene EPDM rubber as aluminium rubber pipe simultaneously.Through prepared like this air-conditioning aluminium rubber composite pipe, the aluminium film middle level of centre is clipped between the crosslinked interior outer rubber layer, iris action is played in aluminium film middle level, and interior outer rubber layer plays the effect of damping and noise reduction.In order to increase shock-absorbing function, can thicken the thickness of chlorosulfonated polyethylene CSM and ethylene-propylene-diene EPDM rubber, that is to say that by increasing compound internal layer and outer field thickness by this two-layer absorbing vibration energy, and the function of obstruct and anti-burst is played in aluminium film middle level.In fact, be not directly related between the softness of the integral body of air-conditioning aluminium rubber composite pipe and the absorbing vibration energy, and depend primarily on the in-fighting ability of the interior outer rubber layer of air-conditioning aluminium rubber composite pipe the mechanical shock energy.Chlorosulfonated polyethylene CSM and ethylene-propylene-diene EPDM itself is a rubber, by material modification, increases its in-fighting intensity and band width, just can reach the purpose of damping.
Chlorosulfonated polyethylene CSM characteristics of molecular structure among the present invention is a kind ofly to make the saturation type elastomer of main chain with polyethylene, thereby the performance of ageing-resistant, anti-ozone and chemicals-resistant is much better than double bond containing unsaturated type elastomer.In addition, the introducing owing to chlorine makes chlorosulfonated polyethylene CSM possess flame retardancy and oil resistance.Simultaneously, make crosslinking points owing to introduce sulphinyl chlorine, and make it as general purpose rubber, to be easy to sulfuration.In addition, the physical and mechanical property of chlorosulfonated polyethylene CSM is good, without black-reinforced, just has the tensile strength of 17MPa.
The present invention introduces higher cross bond by new crosslinking technological, improves the resistance to heat of compound internal layer.Wherein, the heat resisting temperature of chlorosulfonated polyethylene CSM can reach 150 ℃, but answers the suitable age resister of adapted.The oil resistance of chlorosulfonated polyethylene CSM is only second to nitrile butadiene rubber and neoprene.For the oil resistance that improves the chlorosulfonated polyethylene CSM in the compound internal layer with reduce cost, can and use haloflex CPE in chlorosulfonated polyethylene CSM, the compound internal layer of preparation chlorosulfonated polyethylene CSM and haloflex CPE, thus reach of the requirement of air-conditioning aluminium rubber composite pipe to oil resistant and resistance to heat.
The present invention adopts ethene～vinyl acetate copolymer eva hot melt adhesive that interior outer rubber layer is binded mutually with aluminium film middle level, thereby has improved the bulk strength and the high-low temperature resistant alternation performance of air-conditioning aluminium rubber composite pipe.Consider that air-conditioning aluminium rubber composite pipe has good pliability, in order effectively to strengthen the sealing effect of air-conditioning aluminium rubber composite pipe and link, the outer main EPDM rubber of considering to adopt.
The internal diameter of the air-conditioning aluminium rubber composite pipe among the present invention is 2～500mm, and thickness of pipe wall is 0.5～20mm, can satisfy the actual demand of different field.
In sum, the compound internal layer among the present invention has performances such as remarkable antioxidant, anti-ozone, Weather-resistant, UV resistant, anti-nuclear radiation and excellent oil resistant, acid, alkali, salt; Aluminium film middle level is the same with the metal copper pipe to have the characteristic of not oozing, and can be good at stoping the infiltration of various refrigeration agents; That skin adopts is crosslinked ethylene propylene diene rubber EPDM, has good ageing-resistant and corrosion resistance; It has characteristics simple and reasonable, that fabricating cost is low, impermeable ability strong, the absorbing performance is good, vibrating noise is low, can be used as split connecting tube in the air-conditioning and suction tracheae of compressor etc., the realization copper pipe substitutes, and can be widely used in fields such as HVAC, medicine, chemical industry, building and chiller plant.
Description of drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 for the A-A among Fig. 1 to analysing and observe the structure for amplifying schematic representation.
Among the figure: 1 is compound internal layer, and 2 is mesonexine, and 3 is aluminium film middle level, and 4 is ectomesoderm, and 5 is outer.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
First embodiment
Referring to Fig. 1-Fig. 2, this air-conditioning aluminium rubber composite pipe has five layers from inside to outside, comprises compound internal layer 1, mesonexine 2, aluminium film middle level 3, ectomesoderm 4 and outer 5.The internal diameter of whole air-conditioning aluminium rubber composite pipe is 2～500mm, and thickness of pipe wall is 0.5～20mm.
Compound internal layer 1 adopts high crosslinked chlorosulfonated polyethylene CSM and haloflex CPE composite material to make.Compound internal layer 1 is made by following raw materials by weight percent:
Chlorosulfonated polyethylene CSM 48～52%,
Haloflex CPE 30～33%,
Bis-pentamethylenethiuram tetrasulfide 2.5～2.6%,
Polymer-type plasticizer 0.5～0.8%,
Titanium dioxide 0.3～0.7%,
Precipitated calcium carbonate 5.5～5.7%,
Magnesium oxide 0.5～0.7%,
Stearic acid 0.6～0.7%,
Polyatomic alcohol polybasic alcohol 0.2～0.3%,
Naphthenic oil 5.0～5.2%,
Vulcanzing agent S 0.3～0.5%,
Antioxidant NBC 0.7～1.0%,
Altax 0.6～0.8%.
The preparation of compound internal layer 1:
The first step, take by weighing each material component according to the above ratio;
Second step, the banburying of pressurizeing after chlorosulfonated polyethylene CSM, haloflex CPE, bis-pentamethylenethiuram tetrasulfide, polymer-type plasticizer and titanium dioxide mixed obtain just mixing thing;
The 3rd goes on foot, magnesium oxide, stearic acid, polyatomic alcohol polybasic alcohol, naphthenic oil and precipitated calcium carbonate is added in the above-mentioned first mixed thing in batches carry out banburying successively, obtains elastomeric compound;
The 4th step, above-mentioned elastomeric compound is discharged in the mill, and in mill, add altax successively in batches, antioxidant NBC and vulcanzing agent S carry out mixingly, extrusion at last obtains the sizing material of compound internal layer 1.
Mesonexine 2 and ectomesoderm 4 adopt the hot melt adhesive of ethene～vinyl acetate copolymer eva to make.The thickness in aluminium film middle level 3 is 0.2～0.4mm.
Outer 5 adopt crosslinked ethylene propylene diene rubber EPDM to make.Outer 5 are made by following raw materials by weight percent:
EPDM rubber 48～52%,
Ethylene thiourea 2.7～3.0%,
Age resister 0.6～0.7%,
Polyethylene 0.5～0.7%,
Carbon black 25～27%,
Calcium carbonate 13～18%,
Zine oxide 1.0～1.2%,
Sulphur 0.8～1.0%,
Promoter 0.3～0.7%,
Plasticizing agent 0.3～0.7%.
Outer 5 preparation:
The first step, take by weighing each material component according to the above ratio;
Second step, the banburying of pressurizeing after EPDM rubber, ethylene thiourea, age resister and polyethylene mixed obtain just mixing thing;
The 3rd step, carbon black, calcium carbonate and zine oxide are added in batches carry out banburying and obtain elastomeric compound successively;
The 4th step, elastomeric compound is discharged in the mill, and in mill, adds promoter, plasticizing agent and sulphur successively in batches and carry out mixingly, extrude at last and obtain outer 5 sizing material.
The preparation of air-conditioning aluminium rubber composite pipe:
Producing internal diameter is Φ 6mm, and aluminium film middle level thickness is 0.2mm, when whole wall thickness is the air-conditioning aluminium rubber composite pipe of 1.3～1.5mm,
The first step, the aluminium film that at first will be planar thickness and be 0.2～0.4mm directly is superimposed by multilayer and is rolled into tubulose, be made into the aluminum pipe that connects the bar seam for tape welding via the pre-shaping mechanism of installing on the jig, by heater the aluminum pipe that tape welding connects the bar seam is heated about 200 ℃ then, the aluminum pipe that again tape welding is connect the bar seam is sent in the interior pipe die, by interior pipe die the aluminum pipe that tape welding connects the bar seam is carried out sizing processing, the Al pipe butt welding that at last tape welding is connect the bar seam becomes complete aluminum pipe, just forms aluminium film middle level 3;
Second step was heated to the sizing material of the above-mentioned compound internal layer 1 that makes about 190 ℃, through interior pipe die extrude form in the rubber pipe, just form compound internal layer 1, the internal rubber enlargement of pipe of while blowing out pressurised air is exerted pressure;
Then again the sizing material of the above-mentioned skin that makes 5 is extruded with outer pipe die and formed outer rubber pipe, just form outer 5;
Next, ethene～vinyl acetate copolymer eva hot melt adhesive is coated on the inside and outside wall of aluminum pipe uniformly;
At last with interior rubber pipe box in aluminum pipe, outer rubber pipe is coated on the outer wall of aluminum pipe;
The 3rd step, interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are sent in the die cavity of co-extrusion die head together, about heat temperature raising to 210 ℃, boosted to more than the 5MPa, constant temperature and pressure 3 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 6 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
Second embodiment
Producing internal diameter is Φ 8mm, and aluminium film middle level is 0.2mm, and when whole wall thickness was the air-conditioning aluminium rubber composite pipe of 1.5～1.7mm, production process was basic identical with first embodiment, and different is:
The 3rd step: interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are entered in the die cavity of co-extrusion die head together, about heat temperature raising to 220 ℃, boost to more than the 5MPa, constant temperature and pressure 4 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 8 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
All the other are not stated part and see first embodiment, no longer repeat.
The 3rd embodiment
Producing internal diameter is Φ 12mm, and aluminium film middle level is 0.3mm, and when wall thickness was the air-conditioning aluminium rubber composite pipe of 1.7～2.05mm, production process was basic identical with first embodiment, and different is:
The 3rd step: interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are entered in the die cavity of co-extrusion die head together, about heat temperature raising to 225 ℃, boost to about 6MPa, constant temperature and pressure 4 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 8 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
All the other are not stated part and see first embodiment, no longer repeat.
The 4th embodiment
Producing internal diameter is Φ 16mm, and aluminium film middle level is 0.3mm, and when wall thickness was the air-conditioning aluminium rubber composite pipe of 1.95～2.4mm, production process was basic identical with first embodiment, and different is:
The 3rd step: interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are entered in the die cavity of co-extrusion die head together, about heat temperature raising to 230 ℃, boost to more than the 6MPa, constant temperature and pressure 5 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 10 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
All the other are not stated part and see first embodiment, no longer repeat.
The 5th embodiment
Producing internal diameter is Φ 16mm, and aluminium film middle level is 0.3mm, and when wall thickness was the air-conditioning aluminium rubber composite pipe of 1.95～2.4mm, production process was basic identical with first embodiment, and different is:
The 3rd step: interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are entered in the die cavity of co-extrusion die head together, about heat temperature raising to 230 ℃, boost to more than the 6.5MPa, constant temperature and pressure 6 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 11 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
All the other are not stated part and see first embodiment, no longer repeat.
The 5th embodiment
Producing internal diameter is Φ 25mm, and aluminium film middle level is 0.4mm, and when wall thickness was the air-conditioning aluminium rubber composite pipe of 3.50～4.20mm, production process was basic identical with first embodiment, and different is:
The 3rd step: interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are entered in the die cavity of co-extrusion die head together, about heat temperature raising to 230 ℃, boost to more than the 6.5MPa, constant temperature and pressure 7 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 12 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
All the other are not stated part and see first embodiment, no longer repeat.
Claims (9)
1. an air-conditioning aluminium rubber composite pipe has five layers from inside to outside, it is characterized in that comprising compound internal layer (1), mesonexine (2), aluminium film middle level (3), ectomesoderm (4) and skin (5).
2. air-conditioning aluminium rubber composite pipe according to claim 1 is characterized in that described compound internal layer (1) adopts high crosslinked chlorosulfonated polyethylene CSM and haloflex CPE composite material to make.
3. air-conditioning aluminium rubber composite pipe according to claim 1 and 2 is characterized in that described compound internal layer (1) made by following raw materials by weight percent:
Chlorosulfonated polyethylene CSM 48～52%,
Haloflex CPE 30～33%,
Bis-pentamethylenethiuram tetrasulfide 2.5～2.6%,
Polymer-type plasticizer 0.5～0.8%,
Titanium dioxide 0.3～0.7%,
Precipitated calcium carbonate 5.5～5.7%,
Magnesium oxide 0.5～0.7%,
Stearic acid 0.6～0.7%,
Polyatomic alcohol polybasic alcohol 0.2～0.3%,
Naphthenic oil 5.0～5.2%,
Vulcanzing agent S 0.3～0.5%,
Antioxidant NBC 0.7～1.0%,
Altax 0.6～0.8%.
4. air-conditioning aluminium rubber composite pipe according to claim 1 is characterized in that described mesonexine (2) and ectomesoderm (4) adopt the hot melt adhesive of ethene～vinyl acetate copolymer eva to make.
5. air-conditioning aluminium rubber composite pipe according to claim 1, the thickness that it is characterized in that described aluminium film middle level (3) is 0.2～0.4mm.
6. air-conditioning aluminium rubber composite pipe according to claim 1 is characterized in that described skin (5) adopts crosslinked ethylene propylene diene rubber EPDM to make.
7. according to claim 1 or 6 described air-conditioning aluminium rubber composite pipes, it is characterized in that described skin (5) made by following raw materials by weight percent:
EPDM rubber 48～52%,
Ethylene thiourea 2.7～3.0%,
Age resister 0.6～0.7%,
Polyethylene 0.5～0.7%,
Carbon black 25～27%,
Calcium carbonate 13～18%,
Zine oxide 1.0～1.2%,
Sulphur 0.8～1.0%,
Promoter 0.3～0.7%,
Plasticizing agent 0.3～0.7%.
8. according to claim 1,2,4,5 or 6 described air-conditioning aluminium rubber composite pipes, it is characterized in that the internal diameter of described air-conditioning aluminium rubber composite pipe is 2～500mm, thickness of pipe wall is 0.5～20mm.
9. the preparation method of an air-conditioning aluminium rubber composite pipe as claimed in claim 1 is characterized in that may further comprise the steps:
The preparation of compound internal layer (1):
The first step, take by weighing each material component according to the above ratio;
Second step, the banburying of pressurizeing after chlorosulfonated polyethylene CSM, haloflex CPE, bis-pentamethylenethiuram tetrasulfide, polymer-type plasticizer and titanium dioxide mixed obtain just mixing thing;
The 3rd goes on foot, magnesium oxide, stearic acid, polyatomic alcohol polybasic alcohol, naphthenic oil and precipitated calcium carbonate is added in the above-mentioned first mixed thing in batches carry out banburying successively, obtains elastomeric compound;
The 4th step, above-mentioned elastomeric compound is discharged in the mill, and in mill, add altax successively in batches, antioxidant NBC and vulcanzing agent S carry out mixingly, extrusion at last obtains the sizing material of compound internal layer (1);
The preparation of outer (5):
The first step, take by weighing each material component according to the above ratio;
Second step, the banburying of pressurizeing after EPDM rubber, ethylene thiourea, age resister and polyethylene mixed obtain just mixing thing;
The 3rd step, carbon black, calcium carbonate and zine oxide are added in batches carry out banburying and obtain elastomeric compound successively;
The 4th step, elastomeric compound is discharged in the mill, and in mill, adds promoter, plasticizing agent and sulphur successively in batches and carry out mixingly, extrude the sizing material obtain skin (5) at last;
The preparation of air-conditioning aluminium rubber composite pipe:
The first step, the aluminium film that at first will be planar thickness and be 0.2～0.4mm is rolled into tubulose, be made into the aluminum pipe that connects the bar seam for tape welding via the pre-shaping mechanism of installing on the jig, by heater the aluminum pipe that tape welding connects the bar seam is heated about 200 ℃ then, the aluminum pipe that again tape welding is connect the bar seam is sent in the interior pipe die, by interior pipe die the aluminum pipe that tape welding connects the bar seam is carried out sizing processing, the Al pipe butt welding that at last tape welding is connect the bar seam becomes complete aluminum pipe, just forms aluminium film middle level 3;
Second step was heated to the sizing material of the above-mentioned compound internal layer (1) that makes about 190 ℃, through interior pipe die extrude form in the rubber pipe, just form compound internal layer (1), the internal rubber enlargement of pipe of while blowing out pressurised air is exerted pressure;
Then again the sizing material of the above-mentioned skin that makes (5) is extruded with outer pipe die and formed outer rubber pipe, just form outer (5);
Next, ethene～vinyl acetate copolymer eva hot melt adhesive is coated on the inside and outside wall of aluminum pipe uniformly;
At last with interior rubber pipe box in aluminum pipe, outer rubber pipe is coated on the outer wall of aluminum pipe;
The 3rd step, interior rubber pipe, outer rubber pipe and the aluminum pipe that evenly is coated with ethene～vinyl acetate copolymer eva hot melt adhesive are sent in the die cavity of co-extrusion die head together, heat temperature raising to 210 ℃～about 230 ℃, boost to 5MPa～6.5MPa, constant temperature and pressure 3～7 hours is finished the copolyreaction moulding.
After finishing the copolyreaction moulding, adopt circulating water cooling mode that it is cooled to room temperature, deposited again 6～12 hours, finish cross-linking reaction, obtain the finished product of air-conditioning aluminium rubber composite pipe at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010291089 CN101956875A (en) | 2010-09-16 | 2010-09-16 | Aluminum-rubber composite tube of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010291089 CN101956875A (en) | 2010-09-16 | 2010-09-16 | Aluminum-rubber composite tube of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956875A true CN101956875A (en) | 2011-01-26 |
Family
ID=43484383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010291089 Pending CN101956875A (en) | 2010-09-16 | 2010-09-16 | Aluminum-rubber composite tube of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956875A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344616A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Power cable sheath material for dredger underwater shovel arm, and production method thereof |
| CN103206580A (en) * | 2013-04-08 | 2013-07-17 | 青岛中科昊泰新材料科技有限公司 | Ultrahigh molecular-weight polyethylene composite tubing and production method thereof |
| CN105419120A (en) * | 2015-12-21 | 2016-03-23 | 潍坊市宏源防水材料有限公司 | Vulcanized ethylene propylene diene monomer waterproof roll capable of being subjected to hot-air welding construction and production process of vulcanized ethylene propylene diene monomer waterproof roll |
| CN106545718A (en) * | 2017-01-22 | 2017-03-29 | 江苏顺通管业有限公司 | A kind of seamed threeway of high-performance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6293311B1 (en) * | 1998-05-22 | 2001-09-25 | Pmd Holdings Corp. | Multilayer composite pipe fluid conduit system using multilayer composite pipe and method of making the composite |
| US20020069924A1 (en) * | 2000-12-08 | 2002-06-13 | Nuss W. Philip | Fire resistant piping system |
| CN2553222Y (en) * | 2002-07-12 | 2003-05-28 | 吕云富 | Butt-joint welding PP-R aluminium plastic composite pipe |
| CN1991227A (en) * | 2005-12-31 | 2007-07-04 | 青岛三祥科技有限公司 | Domestic air-conditioner soft pipe with low infiltration ratio |
| CN101081915A (en) * | 2006-05-30 | 2007-12-05 | 超胜聚合物有限责任公司 | Fluid-resistant heat-proof chlorinated polyethylene |
| CN101418887A (en) * | 2008-11-26 | 2009-04-29 | 珠海汉胜科技股份有限公司 | Aluminum plastic laminated tube and method for producing the same |
| CN201322145Y (en) * | 2008-12-25 | 2009-10-07 | 珠海斯达纬制管有限公司 | Plastic-aluminum composite connecting pipe |
| CN201531300U (en) * | 2009-07-16 | 2010-07-21 | 蒋亨雷 | Automobile radiator rubber tube |
-
2010
- 2010-09-16 CN CN 201010291089 patent/CN101956875A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6293311B1 (en) * | 1998-05-22 | 2001-09-25 | Pmd Holdings Corp. | Multilayer composite pipe fluid conduit system using multilayer composite pipe and method of making the composite |
| US20020069924A1 (en) * | 2000-12-08 | 2002-06-13 | Nuss W. Philip | Fire resistant piping system |
| CN2553222Y (en) * | 2002-07-12 | 2003-05-28 | 吕云富 | Butt-joint welding PP-R aluminium plastic composite pipe |
| CN1991227A (en) * | 2005-12-31 | 2007-07-04 | 青岛三祥科技有限公司 | Domestic air-conditioner soft pipe with low infiltration ratio |
| CN101081915A (en) * | 2006-05-30 | 2007-12-05 | 超胜聚合物有限责任公司 | Fluid-resistant heat-proof chlorinated polyethylene |
| CN101418887A (en) * | 2008-11-26 | 2009-04-29 | 珠海汉胜科技股份有限公司 | Aluminum plastic laminated tube and method for producing the same |
| CN201322145Y (en) * | 2008-12-25 | 2009-10-07 | 珠海斯达纬制管有限公司 | Plastic-aluminum composite connecting pipe |
| CN201531300U (en) * | 2009-07-16 | 2010-07-21 | 蒋亨雷 | Automobile radiator rubber tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344616A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Power cable sheath material for dredger underwater shovel arm, and production method thereof |
| CN103206580A (en) * | 2013-04-08 | 2013-07-17 | 青岛中科昊泰新材料科技有限公司 | Ultrahigh molecular-weight polyethylene composite tubing and production method thereof |
| CN105419120A (en) * | 2015-12-21 | 2016-03-23 | 潍坊市宏源防水材料有限公司 | Vulcanized ethylene propylene diene monomer waterproof roll capable of being subjected to hot-air welding construction and production process of vulcanized ethylene propylene diene monomer waterproof roll |
| CN106545718A (en) * | 2017-01-22 | 2017-03-29 | 江苏顺通管业有限公司 | A kind of seamed threeway of high-performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5957164A (en) | Refrigerant hose | |
| KR100285667B1 (en) | Hose composed of thermoplastic elastomer composition and thermoplastic elastomer composition | |
| US5362530A (en) | Gas-and-oil impermeable hose construction | |
| KR960006173B1 (en) | Power steering hose | |
| US20060270783A1 (en) | Elastomer compositions for use in a hydrocarbon resistant hose | |
| US7169842B2 (en) | Elastomer compositions for use in a hydrocarbon resistant hose | |
| CN101956875A (en) | Aluminum-rubber composite tube of air conditioner | |
| CN102042446A (en) | Perfluoroether composite air condition hose and preparation method thereof | |
| WO2011018904A1 (en) | Hose for transferring refrigerant | |
| EP1195244B1 (en) | Rubber hose | |
| CN101875744B (en) | Formula of outer rubber layer of hyposmosis air conditioner rubber pipe | |
| JPS61279536A (en) | Hose structure and its manufacturing method | |
| CN101418889B (en) | Structure of low infiltration air conditioner rubber pipe and making method | |
| US6376036B1 (en) | Air conditioning hose | |
| JP2001049063A (en) | Rubber composition, rubber-resin laminate and impermeable hose | |
| WO2011152407A1 (en) | Refrigerant-transporting hose | |
| JP2002370273A (en) | Refrigerant hose | |
| CN104235531A (en) | Air conditioner hose and production method thereof | |
| CN204300539U (en) | A kind of idle call flexible pipe | |
| EP3477177B1 (en) | Rubber composition for refrigerant transporting hoses, and refrigerant transporting hose | |
| CN109340473A (en) | A kind of wavy metal air-conditioner pipe and preparation method thereof meeting novel refrigerant | |
| US8168278B2 (en) | Plastic tube for use in automotive air brake systems | |
| JP5723520B2 (en) | Refrigerant transfer hose | |
| JP2783533B2 (en) | Hose for refrigerant gas | |
| CN105257922A (en) | Low-permeability automobile air conditioner hose and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110126 |